/Engine/Plugins/Online/OnlineServices/Source/OnlineServicesInterface/Public/Online/Sessions.h
Contains updated data for any modifiable members ofISession
struct FSessionUpdate
FSessionMemberI...
AddedSessionMembers
Id handles for members that just joined the session
TOptional<FAcc...
OwnerAccountId
If set, the OwnerUserId member will have updated to this value
FSessionMemberI...
RemovedSessionMembers
Id handles for members that just left the session
TOptional<FSes...
SessionSettingsChanges
If set, the SessionSettings member will have updated using the struct information